Chinese Art A blue and white porcelain brush washer China, Ming dynasty (1368-1644), 17th century . . Cm 8,00 x 4,00. of lenticular shape, made of heavy porcelain with white/blue painted decoration. This sort of containers were part of the typical kit that every scholar used to have on his desk, along with the brushpot, the brush rest, the ink stone and the paper weights to spread the scrolls. This brushwasher stands out for its cursive style and the peculiar shade of cobalt blue with large “watercolor” background, typical of the late Ming period manufacture.